27731845384 has 64 divisors (see below), whose sum is σ = 54575539200. Its totient is φ = 13185716544.

The previous prime is 27731845369. The next prime is 27731845387. The reversal of 27731845384 is 48354813772.

It is not an unprimeable number, because it can be changed into a prime (27731845387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38145229 + ... + 38145955.

It is an arithmetic number, because the mean of its divisors is an integer number (852742800).

Almost surely, 2^27731845384 is an apocalyptic number.

It is an amenable number.

27731845384 is a deficient number, since it is larger than the sum of its proper divisors (26843693816).

27731845384 is a wasteful number, since it uses less digits than its factorization.

27731845384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682 (or 1678 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 52.

The spelling of 27731845384 in words is "twenty-seven billion, seven hundred thirty-one million, eight hundred forty-five thousand, three hundred eighty-four".